Gallic-Vulcan Group

The Gallic-Vulcan Group is a gold and silver mine located in Hinsdale county, Colorado at an elevation of 10,361 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Gallic-Vulcan Group
Secondary: Patented Claims: Gallic, MS 12227
Secondary: Vulcan, MS 12227
Secondary: Unpatented Claims: Vulcan Extension
Secondary: Fairmount
Secondary: Polaris
Secondary: Wedge
Secondary: Orion
Secondary: Aurora
Secondary: Cleon
Secondary: Stella
Secondary: Altamont
Secondary: Rea
Secondary: Gallic Placer
Secondary: Gallic Mill Site
Secondary: Sunshine
Secondary: Explorer
Secondary: Weatherhorn
Secondary: Gold Superior
Secondary: Silver Crest Extension
Secondary: Sunshine Extension
Secondary: Vulcan Mill Site
Secondary: Vulcan Placer

Commodity

Primary: Gold
Primary: Silver
Secondary: Lead
Secondary: Copper
Tertiary: Zinc
Tertiary: Antimony
Tertiary: Tellurium

Location

State: Colorado
County: Hinsdale
District: Galena (Henson Creek) District

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Guioneau (Estate)
Home Office: Paradox
Years: 1935 -

Owner Name: Gallic-Vulcan Mining Corp.
Home Office: Lake City, Co.
Years: 1935 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year Last Production: 1935
Discovery Year: 1883
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: San Juan Volcanic Field, San Juan Depression

Type: L
Description: San Juan-Uncompahgre Calderas, Lake City Caldera, Eureka Graben

Alterations

Not available

Rocks

Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene

Analytical Data

Analytical Data: AVERAGE ORE ASSAY: 0.5 TO 14 OZ/TON AG, 0.02 TO 1.22 OZ/TON AU, 7 % PB, 1 TO 55 % ZN. MILL CONCENTRATES CONTAINED ABOUT 10 OZ/TON AG, 0.21 OZ/TON AU, 50 % PB

Materials

Ore: Chalcopyrite
Ore: Galena
Ore: Gold
Ore: Hessite
Ore: Sylvanite
Ore: Pyrite
Ore: Sphalerite
Ore: Silver
Gangue: Kaolinite
Gangue: Fluorite
Gangue: Calcite
Gangue: Apatite
Gangue: Barite
Gangue: Quartz

Comments

Comment (Development): VULCAN WAS DISCOVERED IN 1883 AND THE GALLIC SEVERAL YEARS LATER. MINE WORKED ON SMALL SCALE FOR MANY YEARS BY BENJAMIN GUIONEAU AND RELATIVES.

Comment (Workings): MAIN GALLIC CROSSCUT TUNNEL DRIVEN GENERALLY SW FOR 900 FT, INTERSECTING VEINS AT 640 FT AND 820 FT FROM PORTAL; ABOUT 1000 FT OF DRIFTING AND STOPING ON FIRST VEIN, 140 FT OF DRIFTING ON SECOND VEIN. DRIFT ON SECOND VEIN CONNECTS TO DRIFT FROM 800-FT VULCAN TUNNEL. SHALLOW DISCOVERY SHAFT. TRESTLE CONNECTED ORE HOUSE WITH SMALL CONCENTRATING MILL.

Comment (Production): PARTIAL PRODUCTION RECORD. FIGURES UNAVAILABLE FOR PRIOR YEARS. NO PRODUCTION REPORTED IN 1922-1928.

Comment (Deposit): MINE LIES JUST BEYOND NW RIM OF LAKE CITY CALDERA IN UNCOMPAHGRE CALDERA INFILL ROCKS CONSISTING OF EUREKA MEMBER RHYOLITE AND BURNS QUARTZ LATITE. SE OF MINE, RHYOLITE INTRUDED BY OLIGOCENE-MIOCENE MONZONITE PORPHYRY PLUG THAT ALTERED RHYOLITE AROUND IT. GALLIC AND VULCAN VEINS TREND N 7 TO 15 W, DIP 50 TO 80 SW. VEIN SHOWS POST-MINERALIZATION BRECCIATION AND SECOND STAGE OF MINERALIZATION. ORES CHARACTERIZED BY TELLURIDES, NATIVE AG AND AU, NATIVE TE, AND CERUSSITE (OXIDIZED ORE). MINE LIES IN SLACK'S (1980) QUARTZ/BASE-METAL ASSEMBLAGE, INNER QUARTZ-CHALCOPYRITE ZONE; TELLURIDES ALSO INDICATE OVERPRINT OF THE BARITE/PRECIOUS-METALS ASSEMBLAGE MORE CHARACTERISTIC OF MINES IN THE LAKE DISTRICT TO THE EAST.

Comment (Location): MINE LIES ON NE SLOPE OF SUNSHINE MOUNTAIN SE OF NORTH FORK HENSON CREEK AND EXTEND SE ONTO EAST SLOPE OF HILL AND 0.9 MILE NW OF CAPITOL CITY SITE. ELEV AND LAT-LONG GIVEN ARE FOR TUNNEL PORTAL IN C E2 E2 SE SEC. 35. ; INFO FROM LAND.ST :1977

References

Reference (Deposit): COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPT.

Reference (Deposit): BLM MINERAL SURVEY MS 12227

Reference (Production): COLORADO DIV. MINES ANNUAL OPERATOR REPT.

Reference (Deposit): IRVING, J.D., AND BANCROFT, HOWLAND, 1911, GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO: USGS BULL. 478, P. 72-74

Reference (Deposit): SLACK, J.F., 1980, MULTISTAGE VEIN ORES OF THE LAKE CITY DISTRICT, WESTERN SAN MOUNTAINS, COLORADO: ECON. GEOLOGY, V. 75, NO. 7, P. 963-991.

Reference (Deposit): LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.

Colorado Mining Photos

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